›› 2018, Vol. 39 ›› Issue (8): 3011-3019.doi: 10.16285/j.rsm.2016.2475

• Geotechnical Engineering • Previous Articles     Next Articles

Penetration speed of sleeve for cast-in-place pile installed in sand by high frequency vibratory hammers using Gudehus-Bauer hypoplastic model

XIAO Yong-jie, CHEN Fu-quan, DONG Yi-zhi   

  1. School of Civil Engineering, Fuzhou University, Fuzhou, Fujian 350116, China
  • Received:2016-10-24 Online:2018-08-11 Published:2018-09-02
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (41272299).

Abstract: With the development of the construction technique of pile sleeves driven by high frequency vibratory hammers, the cast-in-place piles have been widely used in construction engineering. However, the studies on the penetration speed of sleeves for cast-in-place piles driven by high frequency vibratory hammers are still not complete. Assuming rigid body for the sleeve, the soils around the sleeve were divided into several concentric circular cylinders. Considering the soil plugging effect during vibratory sleeve driving, the shear between the soil elements outside the sleeve and the vertical stress at the sleeve bottom were calculated by using the Gudehus-Bauer hypoplasticity constitutive model. The penetration speed was obtained by modelling of the high-frequency vibratory driving of the cast-in-place pile sleeve into sand. To validate the calculation model, the penetration speed obtained by the calculation model was compared with those by the experiment and the finite element simulation. The influence of the void ratio of foundation soil, the vibration frequency and sleeve diameter on the penetration speed of sleeve is analyzed through parametric analysis. The calculation model provides a reliable way for practical engineering to quickly and accurately predict the penetration speed of sleeve.

Key words: sleeve for cast-in-place pile, high frequency vibration, penetration speed, Gudehus-Bauer hypoplastic model

CLC Number: 

  • TU 473

[1] LIN Liang-qing, CHEN Fu-quan. Analysis of pulling mechanism of the sleeve of large diameter Benoto piles [J]. , 2017, 38(8): 2385-2394.
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[3] XIONG Bao-lin, SHAO Long-tan. Research of Gudehus-Bauer hypoplastic constitutive model [J]. , 2006, 27(S1): 175-178.
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